How to Understand Electron Configuration

What is electron configuration?

Which option shows the correct distribution of electrons in the electron shells of a helium atom?

Answer:

The correct distribution of electrons in the electron shells of a helium atom is shown in diagram A.

Electron configuration is the arrangement of electrons in an atom, molecule, or other physical structure. It determines the chemical properties of the atom and how it interacts with other atoms.

In the case of Helium (He), the electron configuration is 1s2, which means there are two electrons in the first shell.

When looking at the given diagrams, diagram A is the correct representation of the electron distribution in the electron shells of a helium atom. It shows two electrons in the first shell.

Understanding electron configuration is essential in chemistry as it helps in predicting the behavior of atoms and molecules in chemical reactions.